1 /******************************************************************************
3 * Module Name: nsinit - namespace initialization
6 *****************************************************************************/
8 /******************************************************************************
12 * Some or all of this work - Copyright (c) 1999 - 2004, Intel Corp.
13 * All rights reserved.
17 * 2.1. This is your license from Intel Corp. under its intellectual property
18 * rights. You may have additional license terms from the party that provided
19 * you this software, covering your right to use that party's intellectual
22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
23 * copy of the source code appearing in this file ("Covered Code") an
24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
25 * base code distributed originally by Intel ("Original Intel Code") to copy,
26 * make derivatives, distribute, use and display any portion of the Covered
27 * Code in any form, with the right to sublicense such rights; and
29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
30 * license (with the right to sublicense), under only those claims of Intel
31 * patents that are infringed by the Original Intel Code, to make, use, sell,
32 * offer to sell, and import the Covered Code and derivative works thereof
33 * solely to the minimum extent necessary to exercise the above copyright
34 * license, and in no event shall the patent license extend to any additions
35 * to or modifications of the Original Intel Code. No other license or right
36 * is granted directly or by implication, estoppel or otherwise;
38 * The above copyright and patent license is granted only if the following
43 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
44 * Redistribution of source code of any substantial portion of the Covered
45 * Code or modification with rights to further distribute source must include
46 * the above Copyright Notice, the above License, this list of Conditions,
47 * and the following Disclaimer and Export Compliance provision. In addition,
48 * Licensee must cause all Covered Code to which Licensee contributes to
49 * contain a file documenting the changes Licensee made to create that Covered
50 * Code and the date of any change. Licensee must include in that file the
51 * documentation of any changes made by any predecessor Licensee. Licensee
52 * must include a prominent statement that the modification is derived,
53 * directly or indirectly, from Original Intel Code.
55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
56 * Redistribution of source code of any substantial portion of the Covered
57 * Code or modification without rights to further distribute source must
58 * include the following Disclaimer and Export Compliance provision in the
59 * documentation and/or other materials provided with distribution. In
60 * addition, Licensee may not authorize further sublicense of source of any
61 * portion of the Covered Code, and must include terms to the effect that the
62 * license from Licensee to its licensee is limited to the intellectual
63 * property embodied in the software Licensee provides to its licensee, and
64 * not to intellectual property embodied in modifications its licensee may
67 * 3.3. Redistribution of Executable. Redistribution in executable form of any
68 * substantial portion of the Covered Code or modification must reproduce the
69 * above Copyright Notice, and the following Disclaimer and Export Compliance
70 * provision in the documentation and/or other materials provided with the
73 * 3.4. Intel retains all right, title, and interest in and to the Original
76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
77 * Intel shall be used in advertising or otherwise to promote the sale, use or
78 * other dealings in products derived from or relating to the Covered Code
79 * without prior written authorization from Intel.
81 * 4. Disclaimer and Export Compliance
83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
100 * 4.3. Licensee shall not export, either directly or indirectly, any of this
101 * software or system incorporating such software without first obtaining any
102 * required license or other approval from the U. S. Department of Commerce or
103 * any other agency or department of the United States Government. In the
104 * event Licensee exports any such software from the United States or
105 * re-exports any such software from a foreign destination, Licensee shall
106 * ensure that the distribution and export/re-export of the software is in
107 * compliance with all laws, regulations, orders, or other restrictions of the
108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
109 * any of its subsidiaries will export/re-export any technical data, process,
110 * software, or service, directly or indirectly, to any country for which the
111 * United States government or any agency thereof requires an export license,
112 * other governmental approval, or letter of assurance, without first obtaining
113 * such license, approval or letter.
115 *****************************************************************************/
118 #define __NSXFINIT_C__
121 #include "acnamesp.h"
122 #include "acdispat.h"
123 #include "acinterp.h"
125 #define _COMPONENT ACPI_NAMESPACE
126 ACPI_MODULE_NAME ("nsinit")
129 /*******************************************************************************
131 * FUNCTION: AcpiNsInitializeObjects
137 * DESCRIPTION: Walk the entire namespace and perform any necessary
138 * initialization on the objects found therein
140 ******************************************************************************/
143 AcpiNsInitializeObjects (
147 ACPI_INIT_WALK_INFO Info;
150 ACPI_FUNCTION_TRACE ("NsInitializeObjects");
153 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
154 "**** Starting initialization of namespace objects ****\n"));
155 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
156 "Completing Region/Field/Buffer/Package initialization:"));
158 /* Set all init info to zero */
160 ACPI_MEMSET (&Info, 0, sizeof (ACPI_INIT_WALK_INFO));
162 /* Walk entire namespace from the supplied root */
164 Status = AcpiWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
165 ACPI_UINT32_MAX, AcpiNsInitOneObject,
167 if (ACPI_FAILURE (Status))
169 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "WalkNamespace failed! %s\n",
170 AcpiFormatException (Status)));
173 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
174 "\nInitialized %hd/%hd Regions %hd/%hd Fields %hd/%hd Buffers %hd/%hd Packages (%hd nodes)\n",
175 Info.OpRegionInit, Info.OpRegionCount,
176 Info.FieldInit, Info.FieldCount,
177 Info.BufferInit, Info.BufferCount,
178 Info.PackageInit, Info.PackageCount, Info.ObjectCount));
180 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
181 "%hd Control Methods found\n", Info.MethodCount));
182 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
183 "%hd Op Regions found\n", Info.OpRegionCount));
185 return_ACPI_STATUS (AE_OK);
189 /*******************************************************************************
191 * FUNCTION: AcpiNsInitializeDevices
195 * RETURN: ACPI_STATUS
197 * DESCRIPTION: Walk the entire namespace and initialize all ACPI devices.
198 * This means running _INI on all present devices.
200 * Note: We install PCI config space handler on region access,
203 ******************************************************************************/
206 AcpiNsInitializeDevices (
210 ACPI_DEVICE_WALK_INFO Info;
213 ACPI_FUNCTION_TRACE ("NsInitializeDevices");
218 Info.DeviceCount = 0;
222 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
223 "Executing all Device _STA and_INI methods:"));
225 Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
226 if (ACPI_FAILURE (Status))
228 return_ACPI_STATUS (Status);
231 /* Walk namespace for all objects */
233 Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
234 ACPI_UINT32_MAX, TRUE, AcpiNsInitOneDevice, &Info, NULL);
236 (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
238 if (ACPI_FAILURE (Status))
240 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "WalkNamespace failed! %s\n",
241 AcpiFormatException (Status)));
244 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
245 "\n%hd Devices found containing: %hd _STA, %hd _INI methods\n",
246 Info.DeviceCount, Info.Num_STA, Info.Num_INI));
248 return_ACPI_STATUS (Status);
252 /*******************************************************************************
254 * FUNCTION: AcpiNsInitOneObject
256 * PARAMETERS: ObjHandle - Node
257 * Level - Current nesting level
258 * Context - Points to a init info struct
259 * ReturnValue - Not used
263 * DESCRIPTION: Callback from AcpiWalkNamespace. Invoked for every object
264 * within the namespace.
266 * Currently, the only objects that require initialization are:
270 ******************************************************************************/
273 AcpiNsInitOneObject (
274 ACPI_HANDLE ObjHandle,
279 ACPI_OBJECT_TYPE Type;
281 ACPI_INIT_WALK_INFO *Info = (ACPI_INIT_WALK_INFO *) Context;
282 ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
283 ACPI_OPERAND_OBJECT *ObjDesc;
286 ACPI_FUNCTION_NAME ("NsInitOneObject");
291 /* And even then, we are only interested in a few object types */
293 Type = AcpiNsGetType (ObjHandle);
294 ObjDesc = AcpiNsGetAttachedObject (Node);
300 /* Increment counters for object types we are looking for */
304 case ACPI_TYPE_REGION:
305 Info->OpRegionCount++;
308 case ACPI_TYPE_BUFFER_FIELD:
312 case ACPI_TYPE_BUFFER:
316 case ACPI_TYPE_PACKAGE:
317 Info->PackageCount++;
322 /* No init required, just exit now */
327 * If the object is already initialized, nothing else to do
329 if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
335 * Must lock the interpreter before executing AML code
337 Status = AcpiExEnterInterpreter ();
338 if (ACPI_FAILURE (Status))
344 * Each of these types can contain executable AML code within the
349 case ACPI_TYPE_REGION:
351 Info->OpRegionInit++;
352 Status = AcpiDsGetRegionArguments (ObjDesc);
355 case ACPI_TYPE_BUFFER_FIELD:
358 Status = AcpiDsGetBufferFieldArguments (ObjDesc);
361 case ACPI_TYPE_BUFFER:
364 Status = AcpiDsGetBufferArguments (ObjDesc);
367 case ACPI_TYPE_PACKAGE:
370 Status = AcpiDsGetPackageArguments (ObjDesc);
374 /* No other types can get here */
378 if (ACPI_FAILURE (Status))
380 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_ERROR, "\n"));
381 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
382 "Could not execute arguments for [%4.4s] (%s), %s\n",
383 AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Type),
384 AcpiFormatException (Status)));
388 * Print a dot for each object unless we are going to print the entire
391 if (!(AcpiDbgLevel & ACPI_LV_INIT_NAMES))
393 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "."));
397 * We ignore errors from above, and always return OK, since we don't want
398 * to abort the walk on any single error.
400 AcpiExExitInterpreter ();
405 /*******************************************************************************
407 * FUNCTION: AcpiNsInitOneDevice
409 * PARAMETERS: ACPI_WALK_CALLBACK
411 * RETURN: ACPI_STATUS
413 * DESCRIPTION: This is called once per device soon after ACPI is enabled
414 * to initialize each device. It determines if the device is
415 * present, and if so, calls _INI.
417 ******************************************************************************/
420 AcpiNsInitOneDevice (
421 ACPI_HANDLE ObjHandle,
426 ACPI_DEVICE_WALK_INFO *Info = (ACPI_DEVICE_WALK_INFO *) Context;
427 ACPI_PARAMETER_INFO Pinfo;
432 ACPI_FUNCTION_TRACE ("NsInitOneDevice");
435 Pinfo.Parameters = NULL;
436 Pinfo.ParameterType = ACPI_PARAM_ARGS;
438 Pinfo.Node = AcpiNsMapHandleToNode (ObjHandle);
441 return_ACPI_STATUS (AE_BAD_PARAMETER);
445 * We will run _STA/_INI on Devices, Processors and ThermalZones only
447 if ((Pinfo.Node->Type != ACPI_TYPE_DEVICE) &&
448 (Pinfo.Node->Type != ACPI_TYPE_PROCESSOR) &&
449 (Pinfo.Node->Type != ACPI_TYPE_THERMAL))
451 return_ACPI_STATUS (AE_OK);
454 if ((AcpiDbgLevel <= ACPI_LV_ALL_EXCEPTIONS) &&
455 (!(AcpiDbgLevel & ACPI_LV_INFO)))
457 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "."));
463 * Run _STA to determine if we can run _INI on the device.
465 ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_METHOD, Pinfo.Node, "_STA"));
466 Status = AcpiUtExecute_STA (Pinfo.Node, &Flags);
468 if (ACPI_FAILURE (Status))
470 if (Pinfo.Node->Type == ACPI_TYPE_DEVICE)
472 /* Ignore error and move on to next device */
474 return_ACPI_STATUS (AE_OK);
477 /* _STA is not required for Processor or ThermalZone objects */
485 /* Don't look at children of a not present device */
487 return_ACPI_STATUS(AE_CTRL_DEPTH);
492 * The device is present. Run _INI.
494 ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_METHOD, Pinfo.Node, "_INI"));
495 Status = AcpiNsEvaluateRelative ("_INI", &Pinfo);
496 if (ACPI_FAILURE (Status))
498 /* No _INI (AE_NOT_FOUND) means device requires no initialization */
500 if (Status != AE_NOT_FOUND)
502 /* Ignore error and move on to next device */
504 #ifdef ACPI_DEBUG_OUTPUT
505 char *ScopeName = AcpiNsGetExternalPathname (Pinfo.Node);
507 ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "%s._INI failed: %s\n",
508 ScopeName, AcpiFormatException (Status)));
510 ACPI_MEM_FREE (ScopeName);
518 /* Count of successful INIs */
523 if (AcpiGbl_InitHandler)
525 /* External initialization handler is present, call it */
527 Status = AcpiGbl_InitHandler (Pinfo.Node, ACPI_INIT_DEVICE_INI);
530 return_ACPI_STATUS (Status);